Description

Note

Handles of type VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT generated by
the implementation may represent either Linux Sync Files or Android Fences
at the implementation’s discretion.
Applications should only use operations defined for both types of file
descriptors, unless they know via means external to Vulkan the type of the
file descriptor, or are prepared to deal with the system-defined operation
failures resulting from using the wrong type.